Windshield cleaner



Jan. 19, 1932. H, HUEBER 1,841,734 I 'WINDSHIELD CLEANER A Filed March 20, 1930 Patented Jan. 19, '1932 UNITED STATES- l PATENT Vol-Fics H'ENBYOF BUFALO, NIW YORK, ASSIGNOB T0 TRIGO PBODUUIS CORPORATION, OIlBUFFALO, NEW YORK enum Application mcd latch 20, 1980. Serial lo.487,573.

This inventionrelates to improvements in liuid pressure operatedwindshield cleaners of the type disclosed in my' Patent No. 1,697,358grantedJ an. l, 1929.

.5 The construction of theV cleaner disclosed in this patent embodies afixed piston over which moves a reciprocatory cylinder carrying to oneside thereof a wiper supporting structure. Means are provided forguiding lo this structure and holding the cylinder from rotation aboutthe piston. The drawings of the patent depict this means as comprising ataut wire or rod stretched substantially parallel to the path of thecylinder and pass- 16'ing through the tubular part of the structurewhereby said part would slide along the wire as the cylinderreciprocated. `Being suby ject to rust and the collection of dustthereon, the wire required considerable attention in order to maintainthe practical eiciency of the cleaner.

' The present invention has for its primary object to improve thecleaner construction resides in the proviion of guide means carried onthe moving portion of the cleaner for acting in cooperation witha wallof the housing for dening the path of movement of such moving portion.

The invention will further be found to reside in the structural featuresof the cooperative guide elements, their association and mountings, aswill appear more' fully hereinafter, reference being had to theaecompanying drawings wherein: Y

Fig. 1 is a perspective view with portions removed, depicting theimproved windshiel cleaner construction.

Fi 2 is an enlarged fragmentary view showmg portions in section andother arts in elevation for a clearer disclosure o Athe structuralfeatures and arrangements.

Fig. 3 is a transverse vertical section 5, through the cleaner.

Fig; 4 is a detail sectional view throug one of the guide rollermountings. Y

Referring more in detailto the accompanying drawings. the numerals 1 and2 designate respectively the atmospheric land .low pressure pipesleading to and supporting a cender and pipes, the latter bein withrespect to its guided movement, and it trally disposed piston (notshown), and the numeral 3 designates the cylinder which encloses thepiston and is slidably supported by the pipes 1 and 2X for reciprocatorymovement as the source of low pressure or suction is alternately appliedto the opposite ends ofthe e linder by the usual valve mechanism, all owhich is more fully set forth' in said patent. v

hehousing or casing 4 encloses the cylinto extended through the ends ofthe housing or communication with the atmosphere and the source of lowpressure. The lower side of the housing is provided with spaceddepending flanges 5 constituting the walls of a slotV or guidewa 6.

, e wiper supporting structure comprises a carrier support 7 on which ismounted a pair of carriers 8, each provided with an '1o arm 9 forsupporting a wiper blade 10. The carrier support 7 is suspended from thelower side of the cylinder by a pair of bracket arms 11. In practice theheads of the c linder 3 are locked in place by bayonet an slot 75connections indicated generally by the reference numeral 12, the lugs ofthese connections being carried by the heads and the lower lug oi eachhead being extended to form the bracket arms 11 for suspending thesupport- 80 ing rod V7. Coiled springs 13 hold the wiper blades in firmwiping contact with the windshieldglass, and by reason of the torsionalstresses of these s rings the cylinder is urged about its longitu "nalaxis, which movement is resisted by the front wall 5 of the guideway 6.In other words, this front wall serves to define the path or course ofthe wiper carrying structure.

Tracking on this front wall 5 are one or 90 more rollers 14, two of suchrollers being herein depicted. Each roller is journaled in a fork oryoke 15 which is attached to an end of the support 7 in a manner tosecure the support to its suspension brackets l1. In

the preferred showing the brackets 11 are provided with openings of asuicient size to receive'the adjacent ends of the support and the forks15 are then secured to the ends of the support, over the brackets 11, toprevent dis lacement of the support therefrom. The7 for are preferablyconnected to their shanks or stems 16 in a swivel-like manner and at thebase of the shanks are collars 17 having a larger diameter than theadjacent ends of the su ort 7 so as to overlie the brackets 11 animpinge against the ends of the support. e s, In assembling the" guiderollers with the wiper carrying structure, 'the support 7 has its endsinserted in the brackets 11, and the shanks 16 are then attached tothese ends as by being threaded thereinto, as shown in Fi 4. The guiderollers therefore serve a trip e oice in first guiding the wipercarrying structure in' its movement, second in securin this structure inits assembled relation, an'

` third in resisting rotary movement of the cylinder.

. In operation, the o rating pressure is alternate y applied to t e endsof the cylinder 3 at o posite sides of its inclosed piston so as toreciprocate the cylinder and its wiper carg structure, during whichreciprocation gnguide rollers 14 track on the front wall of the housingslot 6. The wipers are therefore held firmly against the windshieldglass throughout the extent of travel of the carmember will adjust andaccommodate itself to any unevenness' in the track during reciprocatorymovement of said support.

2. .A windshield cleaner comprising a reciprocatory member having,spaced brackets depending therefromand formed with openings, anelongated supporting member hav-L ing. its ends engaged in the openingsof said brackets for support, wiper carrying means on said supportingmember, means engaging the ends of said supportin member for securingthe same against displacement from the4 openings of said brackets, guidemeans carried by said securing means, and a housing enclosing saidreciprocate member and having a guide surface on which said guide meanshavetracking engagement.

3. A windshield cleaner comprising a reciprocatery cylinder having apair of depending brackets formed with open' therein, an elongatedsupport having its en engaged in fthe openings of said bracket for beingsupported by and from said cylinder, a guide roller at each end of thesupport having a mounting shank threaded into the adjacent end of t esupport and acting to secure the of the adjacent bracket, wi r ing meanson said support, and a guipde moe for being tracke y said rollers.

4. A windshield cleanercomprising a re ciprocatory member, an elongatedsupport carried thereby, wiper means arranged on the support adjacenteach end thereo fixed alongside of the path of movement lof the support,and aguide roller`r arranged at each end of the support fortrackingengagement with said track, each guide roller bein mounted tnswivel about an axis lengthwise of thepath of movement of said support.

5. A windshield'cleaner comprising a reciprocatory member havingspacedtbrackets extending laterally and formed with re tering openings,a wiper supporting mem r interposed between the brackets, meansconnected through the bracket openings with the opposite ends of the suprting member for securing the latter to the rackets, said means beinengaged `with the outer faces of said brac ets, guide rollers carried bysaid means for swiveling about an axis lengthwise of the path ofmovement of said .reci rocatory mema track r, and a track extending aongside of said reciprocatoi'y member for tracking engagement by saidide rollers.

6. A windshield cleaner comprisin a reciprocatory member, a supportcarri there byand provided at its opposite ends with screw threadedopnin guide rollers for said sup rt, means or sup rting each guide roler for movement a ut an axis transversev tothe path of movement of saidH reciprocatory member, said means includ a screw threaded shank engagedin the a jacent one of said screw threaded o nngs in said support, saidscrew thread shank being engaged in its o ning to permit swivelringmovement of sai roller mounting means about the axis of said shank,atrack on which said rollers have tracking engagement, said track actingon said rollers to restrict and llimit said roller mounting meansagainst shank-disloding movement, and wiper means carrie by said su rt.

HE Y HUEBER.

latter against displacement from the opening

